The combustion of 4.000g of a compound that contains only C, H, N and Br yields 3.826g of CO2 and 2.087g of H2O. Another sample of the compound with a mass of 3. 111g is found to contain 1.803 grams of Br. What is the empirical formula of the compound?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5